It definitely confirms that Pink Diamond and Rose are two different people, but I wouldn't jump to conclusions that Rose was the one that betrayed Pink Diamond.
All we know is that Jasper blames Rose for whatever happened to Pink Diamond, but that could be anything from Rose herself physically shattering Pink Diamond, to my past theory that Rose turned Pink Diamond to her cause as a protector of Earth, thus causing her to be destroyed by the Diamond Authority. Jasper can blame her for the loss of Pink Diamond in either of those scenarios, since it would have been the actions of Rose that ended in Pink Diamond's death, whether explicitly or a side effect.
I am still leaning on the latter scenario, because...
A) Quartz seem to be born to fight for their Diamond from the minute they pop out of the ground. Jasper likely was imprinted that she belonged to Pink Diamond, and all it would take is other gems under the Diamond Authority to point towards Rose and say, "Those rebels killed your Diamond!" and she would be all over it. I mean who should she trust? The group that helped birth her and followed other Diamonds like Pink Diamond? Or a rebel fighting the Diamonds? There is nothing outwardly saying she ever met Pink Diamond.
B) The Diamond Authority completely removed Pink Diamond from their insignia. I know they are presented as general evil and self-absorbed, but if they cared about Pink Diamond so much, they likely would have never removed her from the insignia. The fact they did shows a noticeable intention of forgetting she ever existed, which seems odd if she was a martyr for the Authority.
C) At the time Sapphire and Ruby first form into Garnet, they went to Earth to inform BLUE Diamond about the future of the "small, persistent group of rebels". This isn't presented as the middle of some huge war, but instead a very small group causing trouble and not even fully affecting all day to day issues, AKA the start of the rebellion. It would be much later after Rose turned more and more to her side that the biggest parts of the war happened, and thus the need for the Diamond Authority to put up quick and dirty Kindergartens. The fact Blue Diamond was heading this period in Earth's history means Pink Diamond, by that point, was gone for whatever reason.
Just a few things worth mentioning.
All we know is that Jasper blames Rose for whatever happened to Pink Diamond, but that could be anything from Rose herself physically shattering Pink Diamond, to my past theory that Rose turned Pink Diamond to her cause as a protector of Earth, thus causing her to be destroyed by the Diamond Authority. Jasper can blame her for the loss of Pink Diamond in either of those scenarios, since it would have been the actions of Rose that ended in Pink Diamond's death, whether explicitly or a side effect.
I am still leaning on the latter scenario, because...
A) Quartz seem to be born to fight for their Diamond from the minute they pop out of the ground. Jasper likely was imprinted that she belonged to Pink Diamond, and all it would take is other gems under the Diamond Authority to point towards Rose and say, "Those rebels killed your Diamond!" and she would be all over it. I mean who should she trust? The group that helped birth her and followed other Diamonds like Pink Diamond? Or a rebel fighting the Diamonds? There is nothing outwardly saying she ever met Pink Diamond.
B) The Diamond Authority completely removed Pink Diamond from their insignia. I know they are presented as general evil and self-absorbed, but if they cared about Pink Diamond so much, they likely would have never removed her from the insignia. The fact they did shows a noticeable intention of forgetting she ever existed, which seems odd if she was a martyr for the Authority.
C) At the time Sapphire and Ruby first form into Garnet, they went to Earth to inform BLUE Diamond about the future of the "small, persistent group of rebels". This isn't presented as the middle of some huge war, but instead a very small group causing trouble and not even fully affecting all day to day issues, AKA the start of the rebellion. It would be much later after Rose turned more and more to her side that the biggest parts of the war happened, and thus the need for the Diamond Authority to put up quick and dirty Kindergartens. The fact Blue Diamond was heading this period in Earth's history means Pink Diamond, by that point, was gone for whatever reason.
Just a few things worth mentioning.